FUSING
FUSING UNIT
- Turn off the main switch and wait until the fusing unit cools down before beginning any of the procedures in this section. The fusing unit can cause serious burns.
- Turn off the main power switch.
Replacement and Adjustment
- Open the right door.
- Pull up the lock levers [A].
- Pull the fusing unit until you hear a click.
- The lock levers lock the fusing unit again at this time to prevent the fusing unit from falling down.
- Turn off the main power switch.
[*]WEB ROLLER UNIT
- Fusing unit
- Web roller unit [A]
BRAKE PAD
- Web roller unit
- Web left cover [A]
- Web top frame
[*]Web left frame [C]
[*]Brake pad [D]
[*]WEB HOLDER ROLLER AND WEB ROLLERS
Replacement and Adjustment
- Web roller unit
- Web left cover
- Web top frame
- Web left frame
- Front gear bracket [A]
- All gears and bushings (rear side)
[*]Rear gear bracket [C]
[*]All gear and bushings (rear side) [D]
[*]Front bracket [E]
[*]Web holder roller [F] (holder x 2, spring x 2)
[*]Web take up roller [G]
[*]Web supply roller [H]
[*]Installing a new web holder roller
The holder [A] has a one-way clutch. Make sure that the holder [A] is set at the front side.
Replacement and Adjustment
Installing new web rollers
- Install the web supply roller [A] first
[*]Install the web take up roller [C]
[*]Reinstall the rear gear bracket
[*]Reinstall the front and rear gears and bushings
[*]Reinstall the rear gear bracket
[*]Turn the rear gear [E] in the arrow direction to remove the slack in the web sheet.
[*]Reinstall the front gear bracket [F]
[*]Turn the coupling [G] in the arrow direction to remove the slack in the web sheet.
[*]Reinstall the web unit.
[*]If you install a new cleaning web, reset SP 7806-008 (press "Execute" on the LCD).
[*]PRESSURE ROLLER CLEANING ROLLER
- Fusing unit
- Fusing exit guide [A] (lock x 2)
- Fusing front upper cover
[*]Fusing rear upper cover [C]
[*]Fusing outer guide [D] (front:
[*]Cleaning roller unit [E]
[*]Pressure roller cleaning roller [F] (spring x 2, holder x 2)
Replacement and Adjustment
[*]THERMOSTATS
- Fusing unit
- Web roller unit
- Fusing top cover [A] (front:
- Thermostat holder
[*]Thermostat cover [C]
[*]Thermostat [D] (terminal x 2)
[*]THERMISTOR
- Fusing unit
- Web roller unit
- Fusing top cover
- Pull the two tabs [A].
- Disconnect the two terminals .
[*]Sensor stays [C]
[*]Thermistors [D]
[*]HOT ROLLER STRIPPERS
- Fusing unit
- Web roller unit
- Fusing top cover
Replacement and Adjustment
- Fusing top frame [A]
- The cords on this frame are still connected to the fusing unit at this time. Be careful not to damage the cords when removing the hot roller stripper .
[*]Hot roller stripper (spring x 1)
- The cords on this frame are still connected to the fusing unit at this time. Be careful not to damage the cords when removing the hot roller stripper .
[*]FUSING LAMPS
- Fusing unit
- Web roller unit
- Fusing top cover
- Connector cover [A]
- Fusing top frame with connector
[*]Fusing front lower cover [C]
[*]Fusing front frame [D]
[*]Fusing rear lower cover [E]
[*]Fusing rear frame [F]
[*]Terminal bracket [G]
[*]Front holder bracket [H]
[*]Terminal base
[*]Rear holder bracket [J]
Replacement and Adjustment
[*]Fusing lamp-Center (550W) [K]
[*]Fusing lamp-End (750W) [L]
[*]HOT ROLLER AND PRESSURE ROLLER
- Fusing lamps-Center and End
- Hot roller [A] (snap ring x 2, gear x 2, bushing x 2)
- Pressure roller
- Turn off the main switch and wait until the fusing unit cools down before beginning any of the procedures in this section. The fusing unit can cause serious burns.
[*]PAPER EXIT
PAPER EXIT UNIT
- Fusing unit
- Fusing exhaust fan duct
- Paper exit unit [A]
- Fusing unit
FUSING EXIT, PAPER OVERFLOW, AND PAPER EXIT SENSORS
Replacement and Adjustment
- Paper exit unit
- Sensor bracket [A]
- Paper exit sensor
[*]Paper overflow sensor [C]
[*]Sensor bracket [D]
[*]Fusing exit sensor [E]
[*]JUNCTION JAM SENSOR
- Paper exit unit
- Paper guide [A]
- Junction jam sensor
[*]PAPER EXIT MOTOR
- Paper exit unit
- Motor cover [A]
- Exit motor
- Paper exit unit
[*]DUPLEX
DUPLEX UNIT
- Right rear cover
Replacement and Adjustment
- Open the lower right cover [A] at the duplex unit.
- Release the tab and remove the lower door (spring x 2).
[*]Open the right door.
[*]Release the front link [C]
[*]Keep the right door fully open.
[*]Push up the duplex unit a little bit, while pressing the bracket [D] to lock the spring [E].
- Do not let the duplex unit open fully before releasing the wire (step 9). Otherwise, the lock for the spring [E] is released.
[*]Push the projection [G].
[*]Duplex unit
- Do not let the duplex unit open fully before releasing the wire (step 9). Otherwise, the lock for the spring [E] is released.
[*]RIGHT DOOR COVER
Replacement and Adjustment
- Open the duplex door [A] and by-pass tray.
- Right door cover
[*]DUPLEX DOOR SENSOR
- Right door cover
- Duplex door sensor [A]
DUPLEX ENTRANCE SENSOR
- Right door cover
- Open the right door.
- Duplex entrance guide [A]
x 1)
4.
5. Duplex entrance sensor [A] (hooks)
[*]DUPLEX EXIT SENSOR
- Transfer belt unit
Replacement and Adjustment
- Right door rear cover [A]
- Remove the shaft
[*]Transfer belt unit holder [C]
- When re-installing the transfer belt unit holder, make sure that the spring [D] correctly hooks onto the frame.
[*]Duplex exit sensor [F]
- When re-installing the transfer belt unit holder, make sure that the spring [D] correctly hooks onto the frame.
[*]DUPLEX/BY-PASS MOTOR
- Rear cover
- Right rear cover
Replacement and Adjustment
- Frame [A]
- Duplex/By-pass motor bracket
[*]Duplex/By-pass motor [C]
[*]DUPLEX INVERTER MOTOR
- Right rear cover
- Right door cover
- Open the right door.
- Right door rear cover [A]
- Duplex door
[*]Duplex guide plate [C]
[*]Bracket [D]
Replacement and Adjustment
[*]Duplex inverter motor [E]
BY-PASS
BY-PASS PAPER SIZE SENSOR/BY-PASS PAPER LENGTH SENSOR
- Open the lower right cover [A].
- Disconnect the connector and clamp.
- Open the by-pass tray [A].
- Move the side fences to the center.
Replacement and Adjustment
- By-pass tray cover [A]
- By-pass paper size sensor [A]
- By-pass paper length sensor
[*]When reinstalling the by-pass paper size sensor
- Adjust the projection [A] of the left side fence bar (it must be centered).
- Install the by-pass paper size detection switch so that the hole in this switch faces the projection [C] of the left side fence bar.
[*]Reassemble the copier.
[*]Plug in and turn on the main power switch.
[*]Check this switch operation with SP5803-024 (By-pass: Paper Size Sensor< Input Check).
[*]- Display on the LCD -
Paper Size Display Paper Size Display A3 SEF 00001110 A5 SEF 00001011 B4 SEF 00001100 B6 SEF 00000011 A4 SEF 00001101 A6 SEF 00000111 B5 SEF 00001001 Smaller A6 SEF 00001111 BY-PASS PAPER END SENSOR
- Right door cover
Replacement and Adjustment
- By-pass feed unit cover [A]
- By-pass paper end sensor
[*]BY-PASS PICK-UP, FEED AND SEPARATION ROLLER, TORQUE LIMITER
- Right door cover
- By-pass feed unit cover
- By-pass pick-up roller [A] (hook)
- By-pass feed roller
[*]By-pass separation roller [C]
[*]Torque limiter [D]
[*]BY-PASS FEED CLUTCH
- Open the right door.
- Right door rear cover
- Transfer belt unit
- Transfer belt unit holder
- By-pass feed clutch holder [A]
- By-pass feed clutch
- Open the lower right cover [A].
[*]DRIVE AREA
PAPER FEED CLUTCH
Tray 1 and Tray 2
- Rear cover
Replacement and Adjustment
- Clutch bracket [A]
- Paper feed clutch
[*]DEVELOPMENT PADDLE MOTOR
- Rear cover
- Development paddle motor [A]
TRANSFER/DEVELOPMENT MOTOR
- Rear cover
- Transfer/development motor [A]
DRUM MOTOR
- Rear cover
Replacement and Adjustment
- Drum motor [A]
FUSING MOTOR
- Rear cover
- Fusing motor [A]
WEB MOTOR
- Rear cover
- Bracket [A]
- Web motor
[*]PAPER FEED MOTOR
- Rear cover
- Right rear cover
- Paper feed motor [A]
TRANSFER BELT CONTACT MOTOR
- Rear cover
- Right rear cover
- Transfer belt contact motor [A]
[*]REGISTRATION MOTOR
- Rear cover
- Right rear cover
- Registration motor bracket [A]
- Registration motor
[*]TONER SUPPLY MOTOR
- Rear cover
[*]Left cover
[*]Upper inner cover
[*]Inner Tray
Exhaust duct [A] ( x 2)
4.
5. Toner supply motor (hooks,

ELECTRICAL COMPONENTS
CONTROLLER UNIT
Replacement and Adjustment
1. Controller unit [A]HDD UNIT
Before Replacing the HDD Unit
Copy the address book data to an SD card from the HDD with SP5846-051 if possible.
Replacement Procedure
- Controller unit
- HDD unit [A] with connecting board
Replacement and Adjustment
[*]HDD unit [A]
After installing the new HDD unit
- Do SP5832-001 to format the hard disk.
- Do SP5853-001 to copy the preset stamp data from the firmware to the hard disk.
- Do SP5846-052 to copy back the address book to the hard disk from the SD card to which you have already copied the address book data if possible.
- Turn the main power switch off/on.
- Disposal of HDD Units
- Never remove an HDD unit from the work site without the consent of the client.
- If the customer has any concerns about the security of any information on the HDD, the HDD must remain with the customer for disposal or safe keeping.
- The HDD may contain proprietary or classified (Confidential, Secret) information. Specifically, the HDD contains document server documents and data stored in temporary files created automatically during copy job sorting and jam recovery. Such data is stored on the HDD in a special format so it cannot normally be read but can be recovered with illegal methods.
Reinstallation
- Explain to the customer that the following information stored on the HDD is lost when the HDD is replaced: document server documents, fixed stamps, document server address book
- The address book and document server documents (if needed) must be input again.
CONTROLLER BOARD
- The battery on the control board can explode if replaced incorrectly.
- Dispose of the old battery in accordance with the instructions.
Before Replacing the Controller Board in the Model without HDD
When you replace the controller board in a model without a HDD, address book data can be copied from an old controller board to a new controller board using an SD card.
Copy the address book data to an SD card from the flash ROM on the controller board with
SP5846-051 if possible.
Replacement Procedure
- Controller unit
- HDD unit (if it has been installed.)
- Controller cover [A]
Replacement and Adjustment
- Controller right bracket [A]
- Controller board assembly [A]
- NVRAMs [A]
- Interface rails (hooks each)
[*]DIMM-RAM (If it is installed.)
[*]Controller board [C]
When Installing the New Controller Board
- Remove the NVRAMs from the old controller board.
- Install them on the new controller board after you replace the controller board.
- Replace the NVRAMs if the NVRAM on the old controller board is defective.
- Make sure you print out the SMC reports ("SP Mode Data" and "Logging Data") before you replace the NVRAMs.
- Keep NVRAMs away from any objects that can cause static electricity. Static electricity can damage NVRAM data.
- Make sure the NVRAMs are correctly installed on the controller board.
- Make sure that the DIP-switch settings on the old controller board are the same for the new controller board. Do not change the DIP switches on the controller board in the field.
- Make sure you print out the SMC reports ("SP Mode Data" and "Logging Data") before you replace the NVRAMs.
- Controller unit
[*]AFTER INSTALLING THE CONTROLLER BOARD
- For a model without a HDD, do SP5846-052 to copy back the address book to the flash ROM on the controller board from the SD card to which you have already copied the address book data if possible.
- If the customer is using the data encryption feature, the encryption key must be restored.
- Turn the main power switch off/on.
MOTHER BOARD
- Rear cover
Replacement and Adjustment
- Controller unit
- Exhaust fan duct [A]
- Controller box [A]
- Mother board [A]
BCU
1. Controller box
Replacement and Adjustment
2. BCU [A]
- Remove the NVRAM [A] from the old board and install it on the new board.
- Set the DIP switches on the new BCU board to the same settings as the old board.
- Make sure the NVRAM is correctly installed on the BCU. Insert the NVRAM in the NVRAM slot with the "half-moon" pointing to the left side.
[*]When installing the new BCU
- Make sure the NVRAM is correctly installed on the BCU. Insert the NVRAM in the NVRAM slot with the "half-moon" pointing to the left side.
- Remove the NVRAM from the old BCU.
- Install the NVRAM on the new BCU after you replace the BCU.
- Reassemble the machine.
- Turn on the main power switch. 5. "SC995-01" occurs.
- Enter the serial number with SP5-811-004.
- Turn the main power switch off and on.
- Make sure you print out the SMC reports ("SP Mode Data" and "Logging Data") before you replace the NVRAM.
- Keep NVRAM away from any objects that can cause static electricity. Static electricity can damage NVRAM data.
- Make sure you print out the SMC reports ("SP Mode Data" and "Logging Data") before you replace the NVRAM.
IPU
- Controller box
- IPU[[A]
IOB
- Rear cover
Replacement and Adjustment
- IOB [A]
When installing a new IOB
Set the bit switches on the new IOB to the same settings as the old IOB.
[*]PSU
- Left cover
- PSU [A]
- Two clamps (These clamps will be used for the new PSU.)
[*]HIGH VOLTAGE POWER SUPPLY
- Rear cover
- Right rear cover
- High voltage power supply board [A]
FUSING EXHAUST FAN
- Rear cover
- Fusing exhaust duct [A]
- Separate the duct (hooks).
- Fusing exhaust fan
When installing the fusing exhaust fan
Make sure that the fusing fan is installed with its decal facing the right side of the machine.
[*]CONTROLLER FAN
- Controller unit
[*]Controller box
[*]Fan cover [A]
Replacement and Adjustment
[*]Controller fan
When installing the controller fan
Make sure that the controller fan is installed with its decal facing upward.
Electrical Components
Rev. 1/4/2013
4.15.13 NVRAM ON THE BCU BOARD
Replacement Procedure for the NVRAM on the BCU Board
- Turn the main power switch ON.
- Access SP5990-001 and print out all data lists.
[*]Insert the SD card into the lower slot on the controller box.
[*]Turn the main power switch ON.
[*]Upload the NVRAM data (SP5-824-001) onto the SD card.
[*]Turn the main power switch OFF.
[*]Remove the old NVRAM from the BCU and attach the new one.
Important: Even if SC995 is displayed when you turn on the main switch (after replacing the NVRAM), continue with this procedure.
- Access SP5807-001 and set the area code.
Important: SP5807-001 is a Sales SP mode. Dealers must contact the Hotline for the regional support rep. Direct must contact the Hotline for Sensei rep.
- The initial value stored in the NVRAM is “1”.
- After the NVRAM is replaced, the display for SP5807-001 changes to Japanese.
- Refer to the following area destination code list.
Area code Destination 1 JP 2 NA 3 EU 4 TWN 5 AA 6 CHN 7 KOR
- Access SP5-811-001 and program the machine serial number.
- Access SP5-811-004 and program the BCU serial number.
- Turn the main switch off.
- Download the NVRAM data (SP5-825-001) stored on the SD card in Step 5 onto the machine.
- Remove the SD card from the lower slot in the controller box.
-Enter the data from the SMC report manually (included in the factory sheet).
-Reinstall the security options (Data Overwrite Security, HDD Encryption).
Rev. 12/27/2012
Copy Adjustments: Printing/Scanning
COPY ADJUSTMENTS: PRINTING/SCANNING
OVERVIEW
Perform these adjustments after replacing any of the following:- Scanner Wire
- Lens Block/SBU Assembly
- Scanner Drive Motor
- Polygon Mirror Motor
- Paper Side Fence
- Memory All Clear
PRINTING
Replacement and Adjustment
- Make sure paper is installed correctly in each paper tray before you start these adjustments.
- Use the Trimming Area Pattern (SP2-109-1, No. 14) to print the test pattern for the following procedures.
Registration - Leading Edge/Side-to-Side

- Check the leading edge registration [A] for each paper type and paper feed station, and adjust it with following SP modes.
SP No. Specification Tray: Plain SP1-001-1
0 ±9.0 mmTray: Thick 1 SP1-001-2
Rev. 12/27/2012
SP No. Specification Tray: Thick 2 SP1-001-3 By-pass: Plain SP1-001-4 By-pass: Thick 1 SP1-001-5 By-pass: Thick 2 SP1-001-6 Duplex: Plain SP1-001-7 Duplex: Thick 1 SP1-001-8
- Check side-to-side registration for each paper feed station, and adjust with the following SP modes.
SP No. | Specification | |
By-pass | SP1-002-1 | 0 ±4.0 mm |
Tray 1 | SP1-002-2 | |
Tray 2 | SP1-002-3 | |
Tray 3 | SP1-002-4 | |
Tray 4 | SP1-002-5 | |
LCT | SP1-002-6 | |
Duplex | SP1-002-7 |
Last edited: